US2200189A - Apparatus for dispensing heavy liquids - Google Patents

Description

May 7, 1940. F. w. oLlN APPARATUS FOR DISPENSING HEAVY LIQUIDs Filed April 6, 1939 ORNEYS.

'I [z E INVENTOR.

FL 0 Y0 W l 0L /A/ MM 51 Patented May 7, 1940 PATENT OFFICE APPARATUS FOR DISPENSING HEAVY LIQUIDS Floyd W. Olin, Hapeville, Gra.,` assignor to rOswego Falls Corporation, Fulton, N. Y., a

' corporation of New York Application April 6, 1939,`Serial No. 266,322

6 Claims.

This invention relates to apparatus for dispensing liquids and more particularly to an apparatus for dispensing liquids into containers, such for example as milk bottles.

The conventional structure of such apparatus consists generally of a dispensing tube depending from a tank or supply of liquid, such as milk, and a valve member arrangedv in the tube, the valve member consisting of a conical shaped base portion and avent stem extending upwardly therefrom within the dispensing tube. The arrangement is suchthat there is relative axial movement between the dispensing tube and the A spring is employed to normally maintain the lower end of the dispensing tube and the conical base of the valve in 'engagement,-and during the filling operation relative axial movement is effectedl between the tube and the valve by engagement of the lower end of the tube with the top of the bottle and accordingly, the milk or liquid is dispensed through the tube over the conical surface of the valve. The air displaced in the bottle is permitted to pass upwardly vthrough the interiorof the valve and the vent stem.

While this dispensing apparatus works satisfactory for milk and light cream, or with liquids rof comparable viscosity, the apparatus does notv work satisfactory with heavy liquids, such as heavy cream, buttermilk etc. This is due to the fact that because of the greater viscosity of the liquid, it tends to follow across the bottom of the valve and thereby shutting off the vent opening. Various constructions have been employed to overcome this diiiiculty, ysuch for lexample as adding a defiector element to one side of the conical valve surface in order to prevent a continuous formation of liquid across the bottom of the valve.

This invention has as an object a dispensingy apparatus of the type above referred to and which embodies'a construction which is par- :c to the accompanying drawing in which like char- (ol. 22a- 1.24)

acters designate corresponding parts in all the views. i

Figure 1 is a vertical'sectional view of a dispensing apparatus embodying my invention and contiguous portion of the vat and top of the bottle, the apparatus being illustrated during the lling operation.

Figure 2 is a View, similar to Figure 1, illustrating the apparatus in the normal or closed position.

' Figure 3 is a perspective view of the spring member to effect canting of the valve.

It designates the bottom of a vat or receptacle containing the liquid to be dispensed and which is provided with an openingll beneath which is secured a flange I2 threaded internally asl at I3 to receive the dispensing apparatus.

The dispensing apparatus consists generally of a tubular member I4 provided with an externally threaded portion threaded into the flange I2 and with an integral arch-shaped support having leg portions I5 and a central portion I6 provided with a bore to slidably receive the stem of the valve, as hereinafter explained. The dispensing tube further includes, in the structure shown, a sleeve I8 slidably mounted upony the lower end of the member I4 and provided with a radiallyA extending iiange I9. The sleeve i8 is encircled by a helical compression spring 2@ which coacts with the flange I8 to yieldingly urge the sleeve I8 downwardly into engagement with the valve. The lower end of the sleeve I8 is providedwith a rubber gasket 2I for engagement with the top of the bottle B.

The Valve member consists of a conical base portion 2 2 andr a vent stem 23 extending upwardly from the apex of the base 22 through the tube I4 and the central portion I6 of the support. The lower end of the dispensing tube, or the sleeve I8 thereof, is chamfered or beveled complemental to the conical surface of the base 22 of the valve. The upper portion of the vent stem 23, which extends through the central portion I6 of the support, is provided with an enlarged portion 24, and the stem is likewise pro-v vided with an enlarged portion 25 immediately above the support. The enlarged portions, 24, 25 are spaced apart to permit the bifurcated key 26 to be placed about the stem to detachably hold the same against downward movement when the conical base 22 is engaged by the lower end of the dispensing tube or. sleeve I8 under the Iaction of spring 20.

, The structure thus far described is of conventional design. .During the illing operation, the

bottle B engages the gasket 2| and relative axial movement is accordingly effected between the valve member and the dispensing tube. That is, the sleeve I8 is moved upwardly against the action of the'spring 20 and accordingly, the milk or liquid is permitted to flow through the tube ld and over the conical surface 22, the air in the bottle being permitted to escape through the hole Bil provided in the base and stem of the valve. During the relative movement between the valve stem and the dispensing tube, the valve is maintained substantially in coaxial relationship to the tube and the liquid flows over the entire conical surface of the valve, with the result that if the liquid is of high viscosity, as for example heavy cream or buttermilk, it will follow across on the under side of the valve 22 and shut oi the hole 30. I overcome this disadvantage by providing means operable to cant the valve during the lling operation. That is, to maintain one side of the conical base 22 of the valve in engagement with one side of the dispensing tube.

To accomplish this action, I employ a bifurcated spring member formed with a central semi-circular portion 3i engaging the valve stem above the support, and a pair of depending leg portions 32 terminatingy in outwardly aring curved ends 33. The leg portions 32 are arranged on one side of the legs l5 of the arch-shaped support, and are then sprung inwardly under the legs of the support, as indicated at 35, Figure l, with the curved ends 33 engaging the opposite sides of the legs i5 near their joinder with the tube i4. Accordingly, the top of the valve stem 23 is yieldingly urged in one direction, as to the right Figure 1, and the lower end of the valve stem, including the base portion 22, is urged to the opposite side of the axis of the dispensing tube and into engagement with one side of the lower end thereof. During the filling operation, as indicated in Figure l, the base portion 22 of the valve assumes an eccentric relation to the dispensing tube permitting the liquid to be dispensed and to ilow over the major portion of the conical valve surface, however, preventing the liquid from owing over that portion of the valve surface in engagement with the side of the tube. In view of the fact that the ilow of liquid is interrupted over a portion of the valve surface, it accordingly will not form a continuous sheet beneath the valve to cut off the Venting aperture.

The bore in the central portion It of the archshaped support may be slightly enlarged, or the enlarged portion 2 on stem 23 may be tapered slightly, as indicated at 36, Figure 2, in order to permit the valve to be more readily canted.

It will be observed that the construction described does not affect the conventional dispensing valve structure now in use, and the cost of the structure described over the cost of the conventional dispensing valve is nominal.

in cost, but highly efficient in operation, and does not in any way hinder the disassembly of the valve structure for cleaning and sterilizing.l

The, structure of my invention is not only economical.

tive axial movement to permit discharge of liquid( from the tube over the conical surface of said valve, and means cooperable with said vent stem upon such relative movement between the tube and valve to cant said valve to maintain one side of said conical surface in engagement. with the lower end of the tube. f

2. A liquid dispensing apparatus comprising a dispensing tube, a valve member, said valvemember having a conical base portion and a vent stem extending upwardly from the apex of said base portion into said tube, means operable to yieldingly maintain the conical base portion of.

said valve in engagement with the lower end of said tube to prevent the discharge of liquid therefrom, said tube and valve being arranged to have relative axial movment, and means yieldv ingly urging said valve to one side of said tube.

3. A liquid dispensing apparatus comprising a dispensing tube, a valve member, said valve member including a conical base portion and a vent stem extending upwardly from the apex of said base into said tube, a support member provided with an aperture to receive said stem, means yieldingly urging the base portion of said valve and the lower end of said dispensing tubeA a support arranged aboveY the tube and being provided with an aperture to receive said stem,

spring means yieldingly urging the base portion of said valve and the lower end of said' dispensing tube into engagement. to prevent the discharge of liquid from said tube, said tube and valve being arranged to have relative axial movement to permit discharge of liquid from said tube over the conical surface of said valve, and spring means cooperating with said support and said valve stem to yieldingly urge said conical base e portion of the valve intov engagement with one side of said `tube during such relative movement between the valve and said tube.

5. In a bottle filler valve, a liquid discharge tube, a valve member positioned vat the end of said tube and normally effecting closure thereof, a support for said valve member positioned within said discharge tube, said tube and said support being relatively movable to unseat said valve member from said tube end and open said tube for the flow of liquid therethrough, and meansoperable, when said valve member is in opened position, to move said support` and saidfvalve member to one side of said discharge tube.

6. In a bottle ller valve, a liquid dischargev tube, a vent tube positioned within and extend ing through said discharge tube, a valve member supported on said vent tube and normally positioned to endwardly close saidfdischarge tube,f

said discharge tubeiand said valve member being relatively movable to open saiddischarge tube for the flow of liquid therethrough, and means operable, when said valve member is in opened f position, to `laterally move said vent tube and said valve member to one side of said discharge tube, v

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